package service;

import pojo.User;

public interface UserService {

    // 查
    public User findUserByUsername(String username);

    // 条件查
    public User findUserByCondition(User user);


    // 增
    public boolean addUser(User user);

    // 删
    public boolean deleteUser(String username);

    // 改
    public boolean updateUser(User user);

}
